/*
 * Copyright (C) 2015 The Gravitee team (http://gravitee.io)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
import { Injectable } from '@angular/core';
import { BehaviorSubject, Observable } from 'rxjs';

@Injectable({
  providedIn: 'root',
})
export class EventService {
  private eventSource = new BehaviorSubject<GvEvent>(new GvEvent(undefined));
  private events: Observable<GvEvent> = this.eventSource.asObservable();

  dispatch(event: GvEvent) {
    this.eventSource.next(event);
  }

  subscribe(next: (value: GvEvent) => void, error?: (error: any) => void, complete?: () => void) {
    return this.events.subscribe(next, error, complete);
  }

  unsubscribe() {
    this.eventSource.complete();
  }
}

export class GvEvent {
  type: string;
  details: any;

  constructor(type: string, details: any = {}) {
    this.type = type;
    this.details = details;
  }
}
